I'm working on a similar thing for Spyne. It's not fully working (nor released) yet but tests are here: https://github.com/arskom/spyne/blob/master/spyne/test/t

I'm working on a similar thing for Spyne. It's not fully working (nor released) yet but tests are here: https://github.com/arskom/spyne/blob/master/spyne/test/test_sqlalchemy.py#L363 https://github.com/arskom/spyne/blob/master/spyne/test/test_... Basically, complex objects can be stored as json and xml as well as using one-to-one, one-to-many and many-to-many table configurations. Native postgres arrays are also in the to-do list, but probably won't make it in time for 2.9.